I-MAB-SPONSORED ADR (IMAB) Institutional Ownership Changes & 13F Activity
I-MAB-SPONSORED ADR (IMAB). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q4 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Janus Henderson Group Plc, Hhlr Advisors, Ltd., Morgan Stanley, Siren, L.L.C., and Point72 Asset Management, L.P..
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Janus Henderson Group Plc | Buy | +8,436,641 | — | 8,436,641 | $33.58M | Q4 2025 | Feb 17, 2026 |
| Hhlr Advisors, Ltd. | Buy | +5,980,568 | — | 5,980,568 | $23.80M | Q4 2025 | Feb 17, 2026 |
| Point72 Asset Management, L.P. | Buy | +2,298,501 | — | 2,298,501 | $9.15M | Q4 2025 | Feb 17, 2026 |
| Woodline Partners Lp | Buy | +1,050,000 | — | 1,050,000 | $4.18M | Q4 2025 | Feb 17, 2026 |
| Adage Capital Partners Gp, L.L.C. | Buy | +1,000,000 | — | 1,000,000 | $3.98M | Q4 2025 | Feb 17, 2026 |
| Millennium Management Llc | Buy | +846,008 | — | 846,008 | $3.37M | Q4 2025 | Feb 17, 2026 |
| Xtx Topco Ltd | Buy | +140,867 | — | 140,867 | $560.65K | Q4 2025 | Feb 17, 2026 |
| Taikang Asset Management (Hong Kong) Co Ltd | Buy | +128,765 | — | 128,765 | $512.49K | Q4 2025 | Feb 17, 2026 |
| Susquehanna International Group, Llp | Buy | +47,479 | — | 47,479 | $188.97K | Q4 2025 | Feb 17, 2026 |
| Nomura Holdings Inc | Buy | +35,200 | — | 35,200 | $140.10K | Q4 2025 | Feb 17, 2026 |
| Quadrature Capital Ltd | Buy | +29,588 | — | 29,588 | $117.76K | Q4 2025 | Feb 17, 2026 |
| Mangrove Partners Im, Llc | Buy | +26,026 | — | 26,026 | $103.58K | Q4 2025 | Feb 17, 2026 |
| Bank Of America Corp | Buy | +8,219 | — | 8,219 | $32.71K | Q4 2025 | Feb 17, 2026 |
| Royal Bank Of Canada | Buy | +6,360 | — | 6,360 | $25.00K | Q4 2025 | Feb 17, 2026 |
| Public Employees Retirement System Of Ohio | Buy | +2,947 | — | 2,947 | $11.73K | Q4 2025 | Feb 17, 2026 |
| Tower Research Capital Llc (Trc) | Buy | +1,765 | — | 1,765 | $7.03K | Q4 2025 | Feb 17, 2026 |
| Jones Financial Companies Lllp | Buy | +1,104 | — | 1,104 | $4.39K | Q4 2025 | Feb 17, 2026 |
| Osaic Holdings, Inc. | Buy | +30 | — | 30 | $119.00 | Q4 2025 | Feb 17, 2026 |
| Morgan Stanley | Buy | +3,785,502 | — | 3,785,502 | $15.07M | Q4 2025 | Feb 13, 2026 |
| Siren, L.L.C. | Buy | +3,000,000 | — | 3,000,000 | $11.94M | Q4 2025 | Feb 13, 2026 |
| Candriam S.C.A. | Buy | +1,132,563 | — | 1,132,563 | $4.51M | Q4 2025 | Feb 13, 2026 |
| Barclays Plc | Buy | +628,923 | — | 628,923 | $2.50M | Q4 2025 | Feb 13, 2026 |
| Exome Asset Management Llc | Buy | +499,587 | — | 499,587 | $1.99M | Q4 2025 | Feb 13, 2026 |
| State Street Corp | Buy | +359,878 | — | 359,878 | $1.43M | Q4 2025 | Feb 13, 2026 |
| Dymon Asia Capital (Singapore) Pte. Ltd. | Buy | +80,400 | — | 80,400 | $319.99K | Q4 2025 | Feb 13, 2026 |
| Squarepoint Ops Llc | Buy | +34,322 | — | 34,322 | $136.60K | Q4 2025 | Feb 13, 2026 |
| Citigroup Inc | Buy | +6,039 | — | 6,039 | $24.04K | Q4 2025 | Feb 13, 2026 |
| Caitong International Asset Management Co., Ltd | Buy | +528 | — | 528 | $2.10K | Q4 2025 | Feb 13, 2026 |
| Rhumbline Advisers | Buy | +33 | — | 33 | $131.00 | Q4 2025 | Feb 13, 2026 |
| Blackrock, Inc. | Buy | +618,347 | — | 618,347 | $2.46M | Q4 2025 | Feb 12, 2026 |
Frequently asked questions about IMAB activity
Which institutional owners are buying IMAB?
Institutional owners buying IMAB include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in IMAB activity?
"Buy" means an investor increased their reported position in IMAB compared to the prior reporting period. This reflects growing exposure to I-MAB-SPONSORED ADR (IMAB) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in IMAB increasing?
Institutional interest in IMAB can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related IMAB Institutional Insights
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- IMAB Insider Trading & SEC Form 4 Activity
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